Paranado

Iam just wondering for the colour. I was giving her Juju Royal Julian Marley - Powered by Biobizz , flower. Approx 4 ml per litre. In total per week 13 ml. A bit of cal mag and a couple of times a bit of pk. I have to cut this week but iam noticying that the ppm is still high, even though I flashed it 4 times already. On the level of 1,250. Also I had to lower the intensity of the light since I was seeing some grayish colour on the top leaves. Any suggestions please :)